Youth is not defined by age but rather by one's mindset and willingness to take risks and embrace new experiences. While physical signs of aging like wrinkles will come with time, one can remain youthful in spirit by maintaining a sense of curiosity, enthusiasm, courage and optimism. True youthfulness comes from refusing to give up on ideals and curiosity, rather than a number of years lived. As long as one's mind remains open to messages of hope and beauty, they will retain their youthfulness regardless of age.